Control member for liquids



Dec. 9, 1930. w P. w. DES ROCHES 1,783,959

/ CONTROL MEMBER FORLIQUIDS Filed Sept. 9, 1927 w fi 2 E 5/ I Q gwww toz 7 springs.

e springs may be varied by removing the pin 11 and rotating the shaft 6 until thedesired amount of torque has been made in the Preferably, the springs are so formed as to aiford substantially a constant slight changes in elevation or angular movement of the displacement member required tooperate the valve. Thefpin 11 thenlocatesthe lever for its usual rotativemovement 7 as determined by the locationofthec'om trolling member-13,, orf the number of turnson the springs 7 maybe varied.

In order to usethissparticular form of construction for controlling needle valves,

the lever 10 may be'provided With acircularshaped head '15. The sh'aft'lG of the needle valve 17 has an enlargedend'portion- 18 'WhlCll may :be slotted and closed by a block 19v as shownin Fig. 3 or be milled'to formtheopening 20 so that as the head of' the lever 10 is rotated about the axisof the shaft 6, the head 15 Will-engage the end of the opening :to move the needle valve shaft 16 backward oi-forward to open' or close I the valve. The shaftlfi is inovablysupported in the'hole21' formed in a bushing 22. The bushing 22is located in the hole 23in the tion QL-of the bushing abuts the face of'the 'Wallof the container and retains the'bushing 1 from further inward movement.

The hole 21' in Whichthe needle valve 17 is-lo'eated is reduced as at 25 to form a valveseat for the tapered end 26 of the needle valve shaft16.

- To provide sufficient passage for liquid between: the bushing22 and thewv'all of the hole 23 of the container, the end 27 of the bushing 22 is reduced in diameter and formed cylindrical in 'shape 'and a slotted opening 28 is madejin the side of the cylinder atthe point ateivhich the diameter is increasedto the cliameterof the bushing 22; The slot '28 continues the surface 29 made'bythe reduced diameter of the portion'27 below 'the f horizontal aX isof the bushin-g'ea As the controlling member 13 is lowered bylthe' de"-.

crcasedfam'ount of-liquid in the container 1, the lever10rotates on the'axis ofthe shaft '55 drayvn from engagement.with'the'valve seat 25' fwhich' allowsa'ddition'al liquid to flovv' V throughthehole 21in jthe bushing22..

6 which causes the head 15 to dravvjthe shaft 16 outwardly with respecttothe bushing 22 This causes the'tapered portion 26 tobe Inorder'topr'ovide a means for keeping the valve seat clear from obstruction, the

V tapered portion 26 of the shaft 16, is continued in the form of a 's-mallelongated nipple orneedle. The nipple 30.;forces opene ing or breaks up any cloggedmass of sedi- 9 h t der i s n the renin 211 a In Fig. 8, a mountingiplate is illustrated having only half the surface area as the ing plate 2, shown in Fig.5. resistance to the deflection produced by the i I claim:--

1,111 a liquid control device, a container having a, portforsadmitting the liquid, to

the container, amember pivotally supported the container and tending to move by ravity-inter; .direction a spiral spring for counterbalancing aa portion of v the. weight of theTmembeh and surrounding the pivotal axisrlof the niembe'r,ia valve ,member connect'ed to; the member, and adapted tobe moved thereby to close and open the port 2.,In a liquid control device, a container for, containing liquid,'ai.bushing having-3 a reduced cylindrical portion protrudingxinto the container, said cylindrical portion spaced fromthe wall of the opening surrounding the bushing, theibushingfhaving an opening therethiough, a slot ext ending into the side f of th el'cylindrical portion, a .valve seat formed in :one side, of the I slot and at vthe end of the:opening extending through apart 7 of the;bushing,,.a; valve5 located'in the cyl- .iin drical portion and extending through the Wall of thecontainerlp An enlarged porslot and locatedinfposition toebe seated on-the'valvelseat.:-:-

, Inv a: liquid'control device, acontainer for .c ontaininglliquid, a bushing having a re duced icylindricaljportion protruding j;into 1 the container-rand having an opening therethrough, a slot extending intothe side of the cylindrical portion, j said cylindrical portion spaced: from the 1 wall of; the opening surrounding the 'bushing, a valve-seat formed" j:- in ,one side of :the slot and at the end of the opening extending: through'a part of the. bushing, a. valve located in the cylindrical portion and eXtending through the slot-andlocated: in position to be seated on' the; valve seat, and havinganeedle extending rintothe l last mentioned opening to eject any foreign-material thatmaylodge, in the V 14; In a"1iquidcontrol device,-a container for containing a liquid, a bushing having a cylindricalfportion; protruding into the container,". a; slot extending into thewside' of the located in. positioni'to beseated on the valve -seat,,:a member movably supportedinthe container and tending to move -by gravity in. one direction, and aspringfor counterbalancingja iportioniofthe Weight of the member,- means for connectingthe member with the, valve for moving the valvejlongitu- 

